نتایج جستجو برای: path analysis

تعداد نتایج: 2930770  

Journal: :iranian journal of health sciences 0
mohammad ali bigdeli 1. shahid beheshti university of medical sciences, tehran, iran seyed saeed hashemi nazari 2. department of epidemiology ,school of public health, shahid beheshti university of medical sciences, tehran, iran soheila khodakarim 4. department of epidemiology, faculty of public health, shahid beheshti university of medical sciences, tehran, iran hamid brodati 5. health and treatment center of abyek, university of medical sciences qazvin, iran

background and purpose: diabetes is the most common metabolic disorder which is caused by defects in insulin secretion, insulin action, or both .the most important factor in managing diabetes is self-care. since diabetes self-care behaviors are multifactorial and these factors may directly or indirectly affect self-care, it is possible through the application of path analysis to estimate the di...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده برق و کامپیوتر 1393

یکی از مهم ترین معایب فیلتر های n مسیره تازدگی هارمونیکی (hfb) می باشد. یعنی بعضی از هارمونیک های فرکانس سوئیچینگ (fs) می توانند با تبدیل فرکانسی ، مولفه هایی را در باند عبور فیلتر ایجاد کنند. در این پایان نامه روشی سیستماتیک ارائه شده است تا بدون افزایش فرکانس کلاک مرجع ورودی (clkin)، مشکل تازدگی هارمونیکی فیلترهای n مسیره کاهش یابد. برای دستیابی به این هدف، ابتدا تازدگی هارمونیکی در یک فیلتر ...

Journal: :پژوهش های حبوبات ایران 0
محسن عدالت مریم کمالی سیدعبدالرضا کاظمینی بهرام حیدری

introduction red beans (phaseolus vulgaris l.) with 22-25 % protein and 50-60 % carbohydrates are one of the most important legumes in the world, particularly in some developing countries. it is one of the major sources of vegetable protein. with regard to increasing population and increasing the need of protein, the use of plant resources like red bean with a large amount of protein is growing...

Journal: :journal of agricultural science and technology 2014
v. ansari h. salami t. veeman

this paper explores the distributive impacts of subsidy removal in agricultural sectors and related industry in iran, using a social accounting matrix (sam)-based price model. the structural path analysis approach is used to decompose the overall influences into direct, global, and total effects. the simulation results reveal that a shock therapy strategy, which involves the removal of all subs...

Journal: :iranian journal of applied animal science 2015
v. alexandridis b. skapetas d. kantas p. goulas a. eleptheriadou

the aim of the present study was to assess the effect of slaughter and carcass weight, age at slaughter and sex on the fatty acid profile of the greek boutsiko sheep breed. twenty lambs (ten females and ten males) were examined. the lambs were slaughtered at the age of 48 days. carcasses were chopped in nine specific cuts and a random sample of 100 g was taken from each cut, with a total of 180...

Journal: :iran agricultural research 2015
mohsen edalat ali dadkhodaie rouhollah nederi kharraji

chickpea (cicer arietinum l.) is a native crop of asia which is grown worldwide including iran.in this study,different selection criteria including correlation,regression and path analysis were used to improve yield.the experimental design was split plot with rcbd replicated four times in which three sowing dates (5 january,4 february,and 5 march) were used in main plots and four genotypes;two ...

Journal: :ecopersia 2014
behnam farid giglo abdolhossein arami davoud akhzari

soil characteristics is very important in water erosion processes. the present investigation was conducted in gully lands of ardebil province, iran, to assess the role of soil texture and structure on aggregate stability using wet sieve method. to achieve the study purposes, mean weighted diameter of aggregates was calculated, and its relationships with lime and clay percentages, sodium absorpt...

Journal: :iran agricultural research 2016
r. naderi h. ghadiri m. edalat

management of nitrogen fertilization in crops is one of the most important components of integrated weed management. a two-year field experiment was conducted to determine the direct effects of wild mustard aboveground biomass and n content of wild mustard on oilseed rape yield. a set of factorial treatments was arranged in a randomized complete block design with four replications. treatments w...

Journal: :iranian journal of natural resources research 2012
hossein mirzaie-nodoushan ali mirhosseini fereshteh asadi-corom

black saxaul (haloxylon aphyllum) is one of the best options for rehabilitating drought affected desert lands. the species is remarkably adapted to the central dry environment ofiran and a major source of raising pasture productivity of the areas. progenies of 25 randomly selected black saxaul trees from four populations of the species were studied in a randomized complete block design with thr...

Journal: :iranian red crescent medical journal 0
arash mirabzadeh department of social determinants of health research center, university of social welfare and rehabilitation sciences, tehran, ir iran; department of psychiatric, university of social welfare and rehabilitation sciences, tehran, ir iran mahrokh dolatian department of social determinants of health research center, university of social welfare and rehabilitation sciences, tehran, ir iran; social determinants of health research center, university of social welfare and rehabilitation sciences, tehran, ir iran. tel: +98-2188202512, fax: +98-2188202512 ameneh setare forouzan department of social determinants of health research center, university of social welfare and rehabilitation sciences, tehran, ir iran homeira sajjadi department of social determinants of health research center, university of social welfare and rehabilitation sciences, tehran, ir iran hamid alavi majd department of biostatistics, school of paramedical sciences, shahidbeheshti university of medical sciences, tehran, ir iran zohreh mahmoodi faculty of nursing and midwifery, department of midwifery, alborz university of medical sciences, karaj, ir iran

conclusions the current study showed that supporting pregnant mother moderates psychological problems such as stress, anxiety, and depression, and hence reduces preterm labor. results the final path model fit well (cfi = 0.96; rmsea = .064). the results showed that depression, anxiety, and stress (β = -0.18) directly, and stressful life events indirectly (β= -0.0396) had the most predict on ges...

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